clan-core/docs/site/guides/more-machines.md

Clan has two general methods of adding machines:

• Automatic: Detects every folder in the machines folder.
• Declarative: Explicit declarations in Nix.

Automatic registration

Every folder machines/{machineName} will be registered automatically as a Clan machine.

!!! info "Automatically loaded files"

The following files are loaded automatically for each Clan machine:

- [x] `machines/{machineName}/configuration.nix`
- [x] `machines/{machineName}/hardware-configuration.nix`
- [x] `machines/{machineName}/facter.json` Automatically configured, for further information see [nixos-facter](https://clan.lol/blog/nixos-facter/)
- [x] `machines/{machineName}/disko.nix` Automatically loaded, for further information see the [disko docs](https://github.com/nix-community/disko/blob/master/docs/quickstart.md).

Manual declaration

Machines can be added via clan.inventory.machines or in clan.machines, which allows for defining NixOS options.

=== "Individual Machine Configuration"

```{.nix}
clan-core.lib.clan {
    machines = {
        "jon" = {
            # Any valid nixos config
        };
    };
}
```

=== "Inventory Configuration"

```{.nix}
clan-core.lib.clan {
    inventory = {
        machines = {
            "jon" = {
                # Inventory can set tags and other metadata
                tags = [ "zone1" ];
                deploy.targetHost = "root@jon";
            };
        };
    };
}
```